I encountered a TypeScript error when using reduce to create an object where the keys and values are the same. Here’s my code:

const weather = {
  sunny: '맑음',
  partlyCloudy: '구름 조금',
  mostlyCloudy: '구름 많음',
  cloudy: '흐림',
  rain: '비',
  snow: '눈',
  rainOrSnow: '비 또는 눈',
  snowOrRain: '눈 또는 비',
  thunderstorm: '천둥번개',
  fog: '안개',
  yellowDust: '황사'
};

type WeatherKeys = keyof typeof weather;
type WeatherKeyMap = { [K in WeatherKeys]: K };

const foodKeys = (Object.keys(weather) as WeatherKeys[]).reduce((acc, key) => {
  acc[key] = key;
  return acc;
}, {} as WeatherKeyMap);

I’m receiving the following error on acc[key] = key:

Type 'string' is not assignable to type 'never'.

How can I resolve this error?